{
  "$type": "site.standard.document",
  "description": "The invention relates to a driving circuit for a magnetic valve comprising a comparator with variable hysteresis (30). The comparator with variable hysteresis (30) additional to a measuring input terminal (CMP_IN(+)) and a control input terminal (CMP_IN(-)) has an output terminal (CMP_OUT) and…",
  "path": "/patents/981977",
  "publishedAt": "2013-11-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/20",
    "CONTINENTAL AUTOMOTIVE GMBH [DE]"
  ],
  "textContent": "The invention relates to a driving circuit for a magnetic valve comprising a comparator with variable hysteresis (30). The comparator with variable hysteresis (30) additional to a measuring input terminal (CMP_IN(+)) and a control input terminal (CMP_IN(-)) has an output terminal (CMP_OUT) and comprises: an operational amplifier (31) having an non-inverting input terminal (+),an inverting input terminal (-) and an output terminal (CMP_OUT), a serial connection comprising a third resistor (34), a second resistor (33), a first resistor (32) and a control voltage source delivering a variable threshold value (V ctrl ), the serial connection being connected in parallel to a supply voltage (V 5V ) whereby a partial serial connection comprising the second resistor (33), the first resistor (32) and the control voltage source being connected in parallel to a further switching element (35) and the point of connection between the second (33) and first (32) resistor being a voltage tap (V in ), whereby the inverting input terminal (-) of the operational amplifier (31) being connected with the voltage tap (V in ) and the output terminal (CMP_OUT) of the operational amplifier (31) being connected with the control input terminal of the further switching element (35).",
  "title": "Driving circuit for a magnetic valve"
}